Figure 6: Installing the Motherboard in a 4100ES Expansion Bay
4.
If you are installing the leftmost motherboard, connect a 733-525 Power and Communication Harness. Continue to the next topic to connect the
harness.
Connecting the 733-525 Harness
If you need to connect a 733-525 Harness to a motherboard, refer to Figure 7 and follow these steps. Make sure to route the power and
communication wiring on the left side of the bay.
1. Connect one end of the harness to a motherboard in an adjacent bay. If the adjacent bay is the CPU bay, connect the harness to the P8 and
P7 connectors of the CPU motherboard.
- Insert the harness connector with the blue wire into the P8 connector. Note that the P8 connector has eight pins. Insert the harness
connector on either the top four pins or the bottom four pins, not in the middle.
- Insert the harness connector with the white wire into the P7 connector. Note that the P7 connector has eight pins. Insert the harness
connector on either the top four pins or the bottom four pins, not in the middle.
- If the adjacent bay is an expansion bay, connect the harness to the P2 and P3 connectors of the motherboard installed in the leftmost slot.
(If an SDACT or CCDACT occupies the leftmost slot, connect the harness to the motherboard in the second slot from the left.) Connect the
harness as follows:
- Insert the harness connector with the white wire into the P3 connector. Note that the P3 connector has eight pins. Insert the harness
connector on either the top four pins or the bottom four pins, not in the middle.
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579-221 Rev. F
4100-6038 Dual RS-232 Module Installation Instructions